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基于信噪比方法的天地波混合體制雷達一階回波譜提取

基于信噪比方法的天地波混合體制雷達一階回波譜提取[J]. 電子與信息學報, 2015, 37(9): 2177-2182. doi: 10.11999/JEIT150079
引用本文: 基于信噪比方法的天地波混合體制雷達一階回波譜提取[J]. 電子與信息學報, 2015, 37(9): 2177-2182. doi: 10.11999/JEIT150079
First-order Sea Clutter Spectrum Extraction Based on SNR Method for HF Hybrid Sky-surface Wave Radar[J]. Journal of Electronics & Information Technology, 2015, 37(9): 2177-2182. doi: 10.11999/JEIT150079
Citation: First-order Sea Clutter Spectrum Extraction Based on SNR Method for HF Hybrid Sky-surface Wave Radar[J]. Journal of Electronics & Information Technology, 2015, 37(9): 2177-2182. doi: 10.11999/JEIT150079

基于信噪比方法的天地波混合體制雷達一階回波譜提取

doi: 10.11999/JEIT150079
基金項目: 

國家自然科學基金(61032011)和海洋公益性科研專項項目(201505002)

First-order Sea Clutter Spectrum Extraction Based on SNR Method for HF Hybrid Sky-surface Wave Radar

  • 摘要: 天地波混合體制高頻雷達(簡稱天地波雷達,HFHSSWR)海面一階譜的頻移和展寬特性,使得其一階譜的提取比高頻地波雷達(HFSWR)更困難。該文研究了天地波雷達一階譜頻移和展寬特性,并基于其在2維距離-多普勒譜上連續(xù)分布的特點,將信噪比方法應(yīng)用于天地波雷達一階譜提取。通過雙基地角、電離層和海流等對一階譜頻移及展寬特性的定量分析,確定了信噪比方法中一階譜中心位置、譜峰寬度、左右一階譜間距等參數(shù)的計算方法和取值范圍。并利用2維信噪比方法,解決由于天地波雷達信噪比下降引起的一階譜邊界檢測不精確的問題。最后,將信噪比法分別應(yīng)用于仿真和實測天地波雷達數(shù)據(jù),驗證了方法的有效性。
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出版歷程
  • 收稿日期:  2015-01-14
  • 修回日期:  2015-04-08
  • 刊出日期:  2015-09-19

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